Next Graviton2 chips.
AWS Graviton2 7nm SoCs follow-on from the original Graviton models (obviously) and use Arm's Neoverse N1 architecture as the previous speculation dictated.
That rumor contended that there would be 32 cores, when in fact the chips will run to 64 cores, and Graviton2 represents a huge performance boost
In fact, Amazon says that Graviton2 is capable of delivering up to a seven-fold performance increase compared to 1st-gen-based A1 instances across all cores, and up to twice the performance per core. Memory access will be up to five times faster than the original Graviton chips, too, thanks to additional memory channels and double-sized per-core caches.
The new processors were shown off at the AWS re: Invent 201
That includes a new generation of ARM-based instances which are 40% better in terms of price / performance compared to current (fifth-gen) x86-based instances.
Amazon's own benchmarking shows some big per-vCPU performance gains compared to M5 instances, including around a 43 % increase in SPECjvm 2008, a 44% boost in SPEC CPU 2017 integer, and an increase of around 24% in SPEC CPU 2017 floating point.
Amazon notes: "The new instances raise the already-high bar on AWS security , This is what you get at the time. "
Amazon says it's working on three different types of Graviton2:" Building on the existing capabilities of the AWS Nitro System, it's encrypted with 256-bit keys. " -powered EC2 instances: general-purpose, compute-optimized and memory-optimized. It's now running M6g (general-purpose) instances in preview, for testing with non-production workloads, and a full rollout is expected to begin in 2020.